C04B 2235/5208
Fibers
C04B2235/5208 (Fibers) appears on 2,499 US grants and 2,799 published applications in this corpus.
Search patents in C04B- Granted patents
- 2,499
- Published applications
- 2,799
- Assignees
- 993
- Inventors
- 5,051
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 19 | 0 |
| 1989 | 21 | 0 |
| 1990 | 33 | 0 |
| 1991 | 37 | 0 |
| 1992 | 44 | 0 |
| 1993 | 51 | 0 |
| 1994 | 44 | 0 |
| 1995 | 44 | 0 |
| 1996 | 41 | 0 |
| 1997 | 45 | 0 |
| 1998 | 32 | 0 |
| 1999 | 41 | 0 |
| 2000 | 28 | 0 |
| 2001 | 37 | 7 |
| 2002 | 30 | 51 |
| 2003 | 28 | 77 |
| 2004 | 44 | 91 |
| 2005 | 41 | 96 |
| 2006 | 39 | 103 |
| 2007 | 49 | 90 |
| 2008 | 56 | 95 |
| 2009 | 42 | 132 |
| 2010 | 67 | 91 |
| 2011 | 66 | 105 |
| 2012 | 61 | 105 |
| 2013 | 66 | 92 |
| 2014 | 67 | 94 |
| 2015 | 81 | 115 |
| 2016 | 67 | 128 |
| 2017 | 107 | 143 |
| 2018 | 102 | 125 |
| 2019 | 114 | 144 |
| 2020 | 117 | 148 |
| 2021 | 118 | 149 |
| 2022 | 103 | 106 |
| 2023 | 105 | 161 |
| 2024 | 122 | 149 |
| 2025 | 112 | 123 |
| 2026 | 94 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C04B 2235/5216InorganicIndexing code2,000
- C04B 2235/5264Characterised by the diameter of the fibersIndexing code773
- C04B 2235/5252Having a specific pre-formIndexing code616
- C04B 2235/526Characterised by the length of the fibersIndexing code568
- C04B 2235/5268Orientation of the fibersIndexing code337
- C04B 2235/5212OrganicIndexing code144
- C04B 2235/5272Fibers of the same material with different length or diameterIndexing code38
Recent patents
- Method to control dissolution of silicon carbide during fabrication of a ceramic matrix composite6 Oct 2026US 12,753,127 B1Rolls-Royce High Temperature Composites Inc.
- Refractory compound and binder therefor, method for the production and use thereof6 Oct 2026US 12,757,552 B2Intocast AG
- Paste composition for additive manufacturing15 Sep 2026US 12,734,581 B2Vito NV
- Production of aerogel thermal insulation sheet by central injection approach15 Sep 2026US 12,735,364 B1Taiwan Aerogel Technology Material Co., Ltd.
- Polymer-derived ceramic reinforced with boron nitride1 Sep 2026US 12,723,006 B2North Carolina State University
- Thermal insulation materials suitable for use at high temperatures, and process for making said materials8 Oct 2026US 2026/0308071 A1Mersen Scotland Holytown Limited
- Processes for the preparation of (3s,4r)-3-ethyl-4-(3h-imidazo[1,2-a]pyrrolo[2,3-e]-pyrazin-8-yl)-n-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide and solid state forms thereof8 Oct 2026US 2026/0308162 A1
- Fiber composite felt8 Oct 2026US 2026/0309422 A1Sgl Carbon SE
- Preform tapered hole press for improved cvi-cmc microstructure1 Oct 2026US 2026/0296980 A1Rtx Corporation
- Cmc having roughened surfaces for improved heat transfer24 Sep 2026US 2026/0285769 A1Rtx Corporation
Most cited
By later US patents
- Carbon fibrils, method for producing same and compositions containing same361US 4,663,230 AHyperion Catalysis International, Inc. · 1987
- Nanotube fiber reinforced composite materials and method of producing fiber reinforced composites261US 6,934,600 B2Auburn University · 2005
- Carbon fibrils and method for producing same250US 5,165,909 AHyperion Catalysis Int'l., Inc. · 1992
- Electrostatic chuck having gas cavity and method244US 6,310,755 B1APPLIED Materials.Inc. · 2001
- Flexible nonwoven mat204US 5,380,580 AMinnesota Mining and Manufacturing Company · 1995